TANK & MTG GP-FUEL 2833675 - Caterpillar

engine speed governor monitors the following items:
Throttle position
Actual engine rpm
Actual fuel rack positionThe electronic governor provides the following features:
Engine rpm
Engine response
Torque output
Smoke limitingThe electronic governor also minimizes any governor overshoot or any undershoot. This allows the engine to maintain a constant rpm.The engine rpm is controlled by governing the delivery of fuel to the engine. This uses the fuel rack's brushless torque motor (BTM). The throttle's input is used to calculate the desired engine speed. This speed is added to the actual engine speed in order to generate a fuel rack position. The final fuel rack position that is desired depends on the following limits:
Torque
Smoke
Fuel rack position for cold modeElectronic Governor (8RG and 3JK)
Control System Operation
The electronic governor functions in the same way as a mechanical governor in an operating range that is at mid-speed. The electronic governor has no droop. The electronic governor has a low idle that is programmable. This low idle comes between 600 rpm to 750 rpm. This range does not depend on the size of the engine's load. The electronic governor eliminates most of the overrun at high idle that can occur with a mechanical governor.